CN109391379B - HARQ indication method, device and system - Google Patents

HARQ indication method, device and system Download PDF

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Publication number
CN109391379B
CN109391379B CN201710686920.7A CN201710686920A CN109391379B CN 109391379 B CN109391379 B CN 109391379B CN 201710686920 A CN201710686920 A CN 201710686920A CN 109391379 B CN109391379 B CN 109391379B
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Prior art keywords
base station
indication information
feedback information
information
harq
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CN109391379A (en
Inventor
岳然
杨晓东
吴昱民
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements

Abstract

The embodiment of the invention provides a method, a device and a system for indicating HARQ, relating to the technical field of wireless communication and being capable of ensuring that UE (user equipment) can smoothly send feedback information or receive feedback information. The method comprises the following steps: the base station generates HARQ indication information, and the base station transmits the HARQ indication information to the UE, wherein the HARQ indication information comprises identifications of at least two TBs and transmission time indication information corresponding to each of the at least two TBs, the at least two TBs are the TBs transmitted by using different BWPs, the transmission time indication information is used for indicating a time point when the UE transmits first feedback information and/or a time point when the UE receives second feedback information, the first feedback information is feedback information transmitted to the base station after the UE receives the at least two TBs transmitted by the base station, and the second feedback information is feedback information transmitted to the UE after the base station receives the at least two TBs transmitted by the UE.

Description

HARQ indication method, device and system
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, a device and a system for indicating HARQ.
Background
With the rapid development of communication technology, in a Long Term Evolution (LTE) system, a hybrid automatic repeat request (HARQ) technology may be used between a base station and a User Equipment (UE) to transmit data, so as to improve a data transmission rate.
At present, in a process that a base station and a UE transmit data by using an HARQ technology, for example, downlink data transmission, after receiving information sent by the base station, the UE may send feedback information to the base station according to an uplink feedback time point specified by a communication protocol. Specifically, in a Transmission Time Interval (TTI), the base station may transmit 2 Transport Blocks (TBs) in parallel in one HARQ process, and after receiving the 2 TBs sent by the base station, the UE may send feedback information to the base station according to an uplink feedback time point.
However, in a scenario where the communication system supports multiple bandwidth parts (BWPs), 2 TBs transmitted by the base station in one TTI may be transmitted using two different BWPs, and since the feedback time points corresponding to each TB may be different using the 2 TBs transmitted using different BWPs, in the above method, the feedback time points corresponding to the 2 TBs transmitted by the base station are the same, and therefore, the UE may not be able to transmit feedback information to the base station by using the above method, and similarly, the UE may not receive the feedback information transmitted by the base station during uplink data transmission.
Disclosure of Invention
The application provides a HARQ indication method, device and system, which can ensure that UE can smoothly send feedback information or receive feedback information.
In a first aspect, the present application provides a HARQ indication method, which may include: the base station generates HARQ indication information, and the base station transmits the HARQ indication information to the UE, wherein the HARQ indication information comprises identifications of at least two TBs and transmission time indication information corresponding to each of the at least two TBs, the at least two TBs are the TBs transmitted by using different BWPs, the transmission time indication information is used for indicating a time point when the UE transmits first feedback information and/or a time point when the UE receives second feedback information, the first feedback information is feedback information transmitted to the base station after the UE receives the at least two TBs transmitted by the base station, and the second feedback information is feedback information transmitted to the UE after the base station receives the at least two TBs transmitted by the UE.
According to the HARQ indication method provided by the application, the base station can generate the HARQ indication information, and the HARQ indication information is configured to the UE, so that when the UE receives at least two TBs which are transmitted by using different BWPs, the UE can smoothly transmit the first feedback information to the base station according to the HARQ indication information.
In a first optional implementation manner of the first aspect, the transmission time indication information is used to indicate a time point when the UE sends the first feedback information, and after the base station sends the HARQ indication information to the UE, the HARQ indication method provided in this application may further include: the base station sends at least two TBs to the UE, and the base station receives first feedback information sent by the UE according to the transmission time indication information.
In a second optional implementation manner of the first aspect, the transmission time indication information is used to indicate a time point when the UE receives the second feedback information, and after the base station sends the HARQ indication information to the UE, the HARQ indication method provided in this application may further include: and the base station receives at least two TBs sent by the UE, and sends second feedback information to the UE according to the transmission time indication information.
In a third optional implementation manner of the first aspect, the method for sending HARQ indication information to the UE by the base station may include: the base station carries the HARQ indication information in the downlink scheduling information and sends the downlink scheduling information to the UE, or the base station carries the HARQ indication information in a high-level signaling and sends the high-level signaling to the UE, or the base station broadcasts the HARQ indication information.
In this application, the base station may send the HARQ indication information to the UE through any one of the three methods, so that the base station may configure the HARQ indication information for the UE more flexibly.
In a fourth optional implementation manner of the first aspect, before the base station generates the HARQ indication information, the HARQ indication method provided by the present application may further include the base station receiving capability indication information of the UE sent by the UE, where the capability indication information of the UE is used to indicate that the UE supports TB transmission on at least two BWPs.
In this application, the capability of the UE may support the UE to transmit data (transmit data or receive data) using multiple BWPs, the UE may transmit capability indication information of the UE to the base station to indicate that the UE may transmit data using multiple BWPs, that is, to indicate that the UE may receive different TBs transmitted by the base station using different BWPs, or the UE may transmit different TBs using different BWPs, such that the base station receives the capability indication information of the UE transmitted by the UE, the base station transmits the HARQ indication information to the UE, and then transmits different TBs to the UE using different BWPs (that is, the base station may transmit at least two TBs to the UE using at least two BWPs), and after receiving the at least two TBs, the UE may transmit first feedback information to the base station according to the HARQ indication information.
In a fifth optional implementation manner of the first aspect, before the base station generates the HARQ indication information, the HARQ indication method provided in the present application may further include: the base station generates HARQ configuration information and transmits the HARQ configuration information to the UE, wherein the HARQ configuration information comprises an identification of at least one BWP and an identification of a HARQ entity, and the HARQ configuration information is used for indicating the HARQ entity to control and manage the at least one BWP.
In this application, the base station may configure one HARQ entity for each of the BWPs managed by the base station, and the base station may also configure one HARQ entity for each of the BWPs managed by the base station, and send HARQ configuration information including an identifier of at least one BWP and an identifier of the HARQ entity to the UE, so that data may be transmitted between the base station and the UE using at least one BWP in one HARQ process of one HARQ entity.
In a second aspect, the present application provides a HARQ indication method, which may include: the UE acquires HARQ indication information, and the UE sends first feedback information to the base station under the indication of the HARQ indication information, or the UE receives second feedback information sent by the base station under the indication of the HARQ indication information, wherein the HARQ indication information comprises at least two TB identifications and transmission time indication information corresponding to each of the at least two TBs, the at least two TBs are TBs sent by using different BWPs, the transmission time indication information is used for a time point when the UE sends the first feedback information and/or a time point when the UE receives the second feedback information, the first feedback information is feedback information sent to the base station after the UE receives the at least two TBs sent by the base station, and the second feedback information is feedback information sent to the UE after the base station receives the at least two TBs sent by the UE.
According to the HARQ indication method provided by the application, the base station can generate the HARQ indication information, and the HARQ indication information is configured to the UE, so that after the UE sends at least two TBs to the base station, if the at least two TBs are sent by the UE using different BWPs, the UE can smoothly receive the second feedback information sent by the base station according to the HARQ indication information.
In a first optional implementation manner of the second aspect, the transmission time indication information is used to indicate a time point when the UE sends the first feedback information, and after the UE acquires the HARQ indication information, the HARQ indication method provided in this application may further include: the UE receives at least two TBs transmitted by the base station.
In a second optional implementation manner of the second aspect, the transmission time indication information is used to indicate a time point when the UE receives the second feedback information, and after the base station sends the HARQ indication information to the UE, the HARQ indication method provided in this application may further include: the UE transmits at least two TBs to the base station.
In a third optional implementation manner of the second aspect, the method for the UE to send the first feedback information to the base station under the indication of the HARQ indication information may include: and the UE sends first feedback information to the base station at the time point indicated by the transmission time indication information corresponding to the identifier of each TB according to the identifier of each TB in the at least two TBs received by the UE.
In a fourth optional implementation manner of the second aspect, the method for the UE to send the first feedback information to the base station under the indication of the HARQ indication information may include: and the UE sends second feedback information to the receiving base station at the time point indicated by the transmission time indication information corresponding to the identifier of each TB according to the identifier of each TB in the at least two TBs sent by the UE.
In a fifth optional implementation manner of the second aspect, the method for acquiring HARQ indication information by the UE may include: the method comprises the steps that UE receives downlink scheduling information which is sent by a base station and carries HARQ indication information, or the UE receives high-level signaling which is sent by the base station and carries the HARQ indication information, or the UE receives broadcast information which is broadcasted by the base station and carries the HARQ indication information, or the UE obtains predefined HARQ indication information.
In this application, the base station may employ multiple methods to send HARQ indication information to the UE, so that the UE may employ multiple methods to receive the HARQ indication information sent by the base station, and in addition, the UE may obtain predefined HARQ indication information, where the predefined HARQ indication information is defined in a communication protocol between the base station and the UE.
In a sixth optional implementation manner of the second aspect, before the UE acquires the HARQ indication information, the HARQ indication method provided in this application may further include that the UE sends, to the base station, capability indication information of the UE, where the capability indication information of the UE is used to indicate that the UE supports TB transmission on at least two BWPs.
In this application, after the UE sends the capability indication information of the UE to the base station, the base station may know that the UE supports the transmission of the TB on at least two BWPs, and thus, the base station and the UE may transmit data using at least two BWPs.
In a seventh optional implementation manner of the second aspect, before the UE acquires the HARQ indication information, the HARQ indication method provided in the present application may further include: the UE acquires HARQ configuration information, wherein the HARQ configuration information comprises an identification of at least one BWP and an identification of a HARQ entity, and the HARQ configuration information is used for indicating the HARQ entity to control and manage the at least one BWP.
In this application, the HARQ configuration information acquired by the UE may be sent to the UE by the base station, or may be acquired as HARQ configuration information predefined between the base station and the UE. As such, data may be transmitted between the base station and the UE using at least one BWP on one HARQ process of one HARQ entity.
In a third aspect, the present application provides a base station, which may include a generating module and a transmitting module. The generating module may be configured to generate HARQ indication information, where the HARQ indication information includes an identifier of at least two TBs and transmission time indication information corresponding to each of the at least two TBs, where the at least two TBs are TBs sent using different BWPs, the transmission time indication information is used to indicate a time point when the UE sends first feedback information and/or a time point when the UE receives second feedback information, the first feedback information is feedback information sent to the base station after the UE receives the at least two TBs sent by the base station, and the second feedback information is feedback information sent to the UE after the base station receives the at least two TBs sent by the UE.
In a first optional implementation manner of the third aspect, the base station provided in this application may further include a receiving module, and when the transmission time indication information indicates a time point when the UE transmits the first feedback information, the transmitting module may be further configured to transmit at least two TBs to the UE after transmitting the HARQ indication information to the UE; the receiving module may be configured to receive first feedback information sent by the UE according to the transmission time indication information.
In a second optional implementation manner of the third aspect, when the transmission time indication information indicates a time point when the UE receives the second feedback information, the receiving module may be configured to receive at least two TBs sent by the UE after sending the HARQ indication information to the UE; the sending module is further configured to send second feedback information to the UE according to the transmission time indication information.
In a third optional implementation manner of the third aspect, the sending module is specifically configured to carry the HARQ indication information in downlink scheduling information and send the downlink scheduling information to the UE, or carry the HARQ indication information in a higher layer signaling and send the downlink scheduling information to the UE, or broadcast the HARQ indication information.
In a fourth optional implementation manner of the third aspect, the receiving module may be configured to receive capability indication information of the UE sent by the UE before the generating module generates the HARQ indication information, where the capability indication information of the UE is used to indicate that the UE supports transmission of TBs on at least two BWPs.
In a fifth optional implementation manner of the third aspect, the generating module may be configured to generate HARQ configuration information, where the HARQ configuration information includes an identifier of the at least one BWP and an identifier of the HARQ entity, and the HARQ configuration information is used to instruct the HARQ entity to control and manage the at least one BWP, and the sending module may be further configured to send the HARQ configuration information to the UE.
In a fourth aspect, the present application provides a UE that may include an acquisition module and a communication module. The obtaining module may be configured to obtain HARQ indication information, where the HARQ indication information includes identifiers of at least two TBs and transmission time indication information corresponding to each of the at least two TBs, where the at least two TBs are TBs sent using different BWPs, the transmission time indication information is used at a time point when the UE sends first feedback information and/or a time point when the UE receives second feedback information, the first feedback information is feedback information sent to the base station by the UE after the UE receives the at least two TBs sent by the base station, and the second feedback information is feedback information sent to the UE by the base station after the base station receives the at least two TBs sent by the UE; the communication module may be configured to send first feedback information to the base station under the indication of the HARQ indication information acquired by the acquisition module, or receive second feedback information sent by the base station under the indication of the HARQ indication information acquired by the acquisition module.
In a first optional implementation manner of the fourth aspect, the transmission time indication information is used to indicate a time point when the UE transmits the first feedback information, and the communication module may be further configured to receive at least two TBs transmitted by the base station after the obtaining module obtains the HARQ indication information.
In a second optional implementation manner of the fourth aspect, the transmission time indication information is used to indicate a time point when the UE receives the second feedback information, and the communication module may be further configured to send at least two TBs to the base station after the obtaining module obtains the HARQ indication information.
In a third optional implementation manner of the fourth aspect, the communication module is specifically configured to send, according to the received identifier of each of the at least two TBs, the first feedback information to the base station at a time point indicated by the transmission time indication information corresponding to the identifier of each TB.
In a fourth optional implementation manner of the fourth aspect, the communication module is specifically configured to send, according to an identifier of each TB of the at least two TBs, the second feedback information to the receiving base station at a time point indicated by the transmission time indication information corresponding to the identifier of each TB.
In a fifth optional implementation manner of the fourth aspect, the obtaining module is specifically configured to receive downlink scheduling information that is sent by a base station and carries HARQ indication information, or receive a high-level signaling that is sent by the base station and carries HARQ indication information, or receive broadcast information that is broadcast by the base station and carries HARQ indication information, or obtain predefined HARQ indication information.
In a sixth optional implementation manner of the fourth aspect, the communication module may be configured to send, to the base station, capability indication information of the UE before the obtaining module obtains the HARQ indication information, where the capability indication information of the UE is used to indicate that the UE supports transmission of TBs on at least two BWPs.
In a seventh optional implementation manner of the fourth aspect, the obtaining module may be further configured to, before obtaining the HARQ indication information, obtain HARQ configuration information, where the HARQ configuration information includes an identifier of the at least one BWP and an identifier of the HARQ entity, and the HARQ configuration information is used to indicate that the HARQ entity controls and manages the at least one BWP.
In the first to fourth aspects, when the transmission time indication information is used to indicate a time point when the UE transmits the first feedback information, the transmission time indication information may include a time point when the UE transmits the first feedback information to the base station, or an index of the time point when the UE transmits the first feedback information to the base station, or a time difference between the time point when the UE transmits the first feedback information to the base station and a time point when the UE receives at least two TBs transmitted by the base station; when the transmission time indication information is used to indicate a time point when the UE receives the second feedback information, the transmission time indication information may include a time point when the UE receives the second feedback information sent by the base station, or an index of the time point when the UE receives the second feedback information sent by the base station, or a time difference between the time point when the UE receives the second feedback information sent by the base station and a time point when the UE sends at least two TBs to the base station.
In this application, the transmission time indication information may include any one of a plurality of information that can indicate a time point when the UE transmits the first feedback information or a time point when the UE receives the second feedback information transmitted by the base station, that is, the content of the transmission time indication information may also be flexibly selected.
In the first to fourth aspects, the HARQ indication information may further include frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to transmit the first feedback information or a frequency domain resource used to receive the second feedback information.
In this application, the HARQ indication information may further include frequency domain resource indication information corresponding to each of the at least two TBs, so that the UE may transmit the first feedback information or receive the second feedback information by using the indicated frequency domain resource according to the frequency domain resource indication information.
In the first to fourth aspects, when the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to send the first feedback information, the frequency domain resource indication information may include a frequency domain resource used by the UE to send the first feedback information to the base station, or an index of the frequency domain resource used by the UE to send the first feedback information to the base station; when the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to receive the second feedback information, the frequency domain resource indication information may include the frequency domain resource used by the UE to receive the second feedback information sent by the base station, or an index of the frequency domain resource used by the UE to receive the second feedback information sent by the base station.
In this application, the frequency domain resource indication information may include any one of a plurality of information that can indicate a time point when the UE transmits the first feedback information or a time point when the UE receives the second feedback information transmitted by the base station, that is, the content of the transmission time indication information may also be flexibly selected.
In the first to fourth aspects, the HARQ indication information may include an identification of the at least two BWPs and transmission time indication information corresponding to each of the at least two BWPs, and the HARQ indication information may further include frequency domain resource indication information corresponding to each of the at least two BWPs.
In this application, since at least two TBs are TBs transmitted using different BWPs, it may be considered that there is a correspondence between the TBs and the BWPs, that is, different TBs correspond to different BWPs, and therefore, the HARQ indication information may also include an identifier of at least two BWPs and transmission time indication information corresponding to each BWP in the at least two BWPs, and after receiving the at least two TBs transmitted by the base station, the UE may consider the transmission time indication information corresponding to each BWP to be transmission time indication information corresponding to each TB according to the correspondence between the TB and the BWPs, and thus, the UE may transmit first feedback information at a time point indicated by the transmission time indication information.
In the first to fourth aspects, the HARQ indication information may include an identification of at least two value configurations (numerology) and transmission time indication information corresponding to each of the at least two value configurations (numerology), and the HARQ indication information may further include frequency domain resource indication information corresponding to each of the at least two value configurations (numerology).
In this application, BWPs are divided according to different numerical configurations (numerology), so BWPs and numerical configurations (numerology) may be considered to have a corresponding relationship, that is, BWPs correspond to different numerical configurations (numerology), and BWPs and TBs also have a corresponding relationship, that is, BWPs correspond to different TBs, so that TB and numerical configuration (numerology) may be considered to have a corresponding relationship, that is, TB and TB correspond to different numerical configurations (numerology), and therefore HARQ indication information may also include an identifier of at least two numerical configurations (numerology) and transmission time indication information corresponding to each numerical configuration (numerology) of the at least two numerical configurations (numerology), and after the UE receives at least two TBs sent by the base station, the UE may determine transmission time indication information corresponding to each TB, that the transmission time indication information corresponding to each BWP is transmission time indication information corresponding to each TB, in this way, the UE may send the first feedback information at the time point indicated by the transmission time indication information, and similarly, the UE may receive the second indication information at the time point indicated by the transmission time indication information, and also for the frequency domain resource indication information.
In a fifth aspect, the present application provides a base station that may include a processor and a memory coupled to the processor. The memory may be used to store computer instructions. When the base station is running, the processor executes the computer instructions stored by the memory to cause the base station to perform the HARQ indication method of the first aspect or any one of its possible implementations.
In a sixth aspect, the present application provides a computer-readable storage medium that may include computer instructions. When run on a base station, the computer instructions cause the base station to perform the HARQ indication method of the first aspect or any one of its possible implementations.
In a seventh aspect, the present application provides a computer program product comprising computer instructions, which when run on a base station, causes the base station to perform the HARQ indication method of the first aspect or any one of its possible implementations.
In an eighth aspect, the present application provides a device, which is in the form of a chip, and the device includes a processor and a memory, the memory is configured to be coupled with the processor and store necessary program instructions and data of the device, and the processor is configured to execute the program instructions stored in the memory, so that the device performs the functions of the base station in the above method.
For the description of the related contents and technical effects of the fifth aspect to the eighth aspect, reference may be made to the above description of the related contents and technical effects of the first aspect or any one of its possible implementations, and details are not described here again.
In a ninth aspect, the present application provides a UE that may include a processor and a memory coupled to the processor. The memory may be used to store computer instructions. When the UE is running, the processor executes the computer instructions stored by the memory to cause the UE to perform the HARQ indication method of the second aspect or any one of its possible implementations.
In a tenth aspect, the present application provides a computer-readable storage medium that may include computer instructions. The computer instructions, when executed on a UE, cause the UE to perform the HARQ indication method of the second aspect or any one of its possible implementations.
In an eleventh aspect, the present application provides a computer program product comprising computer instructions, which when run on a UE, causes the UE to perform the HARQ indication method of the second aspect or any one of its possible implementations.
In a twelfth aspect, the present application provides an apparatus, which exists in the form of a chip product, and which includes a processor and a memory, the memory is configured to be coupled to the processor and store necessary program instructions and data of the apparatus, and the processor is configured to execute the program instructions stored in the memory, so that the apparatus performs the functions of the UE in the above method.
For the description of the related contents and technical effects of the ninth aspect to the twelfth aspect, reference may be made to the above description of the related contents and technical effects of the second aspect or any one of its possible implementations, and details are not repeated here.
In a thirteenth aspect, the present application provides a wireless communication system, which may include the base station in the third aspect or any one of its possible implementations, and the UE in the fourth aspect or any one of its possible implementations.
Alternatively, the wireless communication system may include the base station in the fifth aspect described above, and the UE in the ninth aspect described above.
For a description of relevant contents and technical effects of the thirteenth aspect, reference may be made to the above description of relevant contents and technical effects of the first aspect or any one of its possible implementations and the second aspect or any one of its possible implementations, and details are not described here again.
Drawings
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;
fig. 2 is a hardware schematic diagram of a base station according to an embodiment of the present invention;
fig. 3 is a hardware schematic diagram of a mobile phone according to an embodiment of the present invention;
fig. 4 is a first schematic diagram illustrating a HARQ indication method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a HARQ indication method according to an embodiment of the present invention;
fig. 6 is a third schematic diagram of a HARQ indication method according to an embodiment of the present invention;
fig. 7 is a fourth schematic diagram illustrating a HARQ indication method according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a UE according to an embodiment of the present invention.
Detailed Description
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second," and the like, in the description and in the claims of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first feedback information, the second feedback information, and the like are for distinguishing different feedback information, and are not for describing a specific order of the feedback information.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of processing units refers to two or more processing units; the plurality of systems refers to two or more systems.
First, some concepts related to a HARQ indication method, apparatus and system provided by the embodiments of the present invention are explained.
HARQ technique: the method is an error control technology, can improve the transmission quality of signals and ensures the transmission reliability of a wireless channel. In the process of data transmission, a receiving end receives data sent by a sending end and temporarily stores the data and requests the sending end to retransmit the data under the condition that the data is failed to decode, and then the receiving end combines the retransmitted data with the data failed to decode before and decodes the data.
BWP: for a system adopting a 5th Generation (5G) mobile communication technology in the future (hereinafter, referred to as a 5G system for short), or an ultra-4G system, or a post-LTE system, for example, in a 5G New Radio (NR) protocol, a total bandwidth of a cell in which a UE operates is 100M (megabits), and a bandwidth in which the UE operates may be relatively small, such as 20M, so that for a base station of a cell, the base station needs to allocate 20M from 100M of bandwidth as an operating bandwidth of the UE, which may be referred to as BWP. Illustratively, for a 100M system bandwidth, the 100M system bandwidth may be divided into a 20M BWP, a 30M BWP, and a 50M BWP according to numerical configuration (including a series of parameters such as subcarrier spacing, symbol length, and cyclic prefix length of the symbol).
The HARQ indication method and the device provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a system adopting a 5th Generation (5G) mobile communication technology (hereinafter, referred to as a 5G system), and referring to fig. 1, it is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention. As shown in fig. 1, the wireless communication system may include a base station 10 and a UE 11. In the process of transmitting data between the base station 10 and the UE11, the HARQ technology may be used to transmit data, so as to ensure smooth data transmission between the base station and the UE, and improve the data transmission rate. In practical applications, the connections between the above devices may be wireless connections, and fig. 1 illustrates the connections between the devices by solid lines for convenience and convenience in visual representation.
It should be noted that, in the embodiment of the present invention, the communication system may include a plurality of UEs, and the base station 10 and the plurality of UEs may all transmit data by using the HARQ technology.
The base station provided in the embodiment of the present invention may be a commonly used base station, may also be an evolved node base station (eNB), and may also be a network device in a 5G system (for example, a next generation base station (gNB) or a Transmission and Reception Point (TRP)) and other devices. For example, the embodiment of the present invention takes a base station as a commonly used base station as an example, and introduces a hardware structure of the base station. The following describes each component of the base station provided in the embodiment of the present invention with reference to fig. 2. As shown in fig. 2, a base station provided in an embodiment of the present invention may include: parts 20 and 21. The 20 part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; the 21 part is mainly used for baseband processing, base station control, and the like. Portion 20 may be generally referred to as a transceiver unit, transceiver, transceiving circuitry, or transceiver, etc. Part 21 is typically a control center of the base station, which may be generally referred to as a processing unit, for controlling the base station to perform the steps described above with respect to the base station (i.e., serving base station) in fig. 2. Reference is made in particular to the description of the relevant part above.
The transceiver unit of part 20, which may also be referred to as a transceiver, or transceiver, etc., includes an antenna and a radio frequency unit, where the radio frequency unit is mainly used for radio frequency processing. Optionally, a device used for implementing the receiving function in the part 20 may be regarded as a receiving unit, and a device used for implementing the sending function may be regarded as a sending unit, that is, the part 20 includes a receiving unit and a sending unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like, and a transmitting unit may be referred to as a transmitter, a transmitting circuit, or the like.
Section 21 may include one or more boards, each board may include one or more processors and one or more memories, the processors being configured to read and execute programs in the memories to implement baseband processing functions and control of the base station. If a plurality of single boards exist, the single boards can be interconnected to increase the processing capacity. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time. The memory and the processor may be integrated together or may be provided separately. In some embodiments, the 20 and 21 sections may be integrated or may be separate. In addition, all functions in the part 21 may be integrated in one chip, or part of the functions may be integrated in one chip, so that another part of the functions is integrated in one or more other chips, which is not limited in this application.
The UE provided in the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), or the like.
Exemplarily, the embodiment of the present invention takes UE as a mobile phone as an example, and introduces a hardware structure of the UE. The following describes each component of the mobile phone provided by the embodiment of the present invention with reference to fig. 3. As shown in fig. 3, a mobile phone provided in an embodiment of the present invention includes: a processor 30, a Radio Frequency (RF) circuit 31, a power supply 32, a memory 33, an input unit 34, a display unit 35, and an audio circuit 36. Those skilled in the art will appreciate that the configuration of the handset shown in fig. 3 does not constitute a limitation of the handset, and may include more or fewer components than those shown in fig. 3, or may combine some of the components shown in fig. 3, or may be arranged differently than those shown in fig. 3.
The processor 30 is the control center of the handset and connects the various parts of the entire handset using various interfaces and lines. The overall monitoring of the handset is performed by executing or executing software programs and/or modules stored in the memory 33 and calling data stored in the memory 33 to perform various functions of the handset and process the data. Alternatively, processor 30 may include one or more processing units. Optionally, the processor 30 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, an application program, and the like; the modem processor handles primarily wireless communications. It will be appreciated that the modem processor described above may also be a processor separate from the processor 30.
The RF circuit 31 may be used to receive and transmit signals during the transmission and reception of information or during a call. For example, the downlink information of the base station is received and then processed by the processor 30; in addition, the uplink data is transmitted to the base station. Typically, the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), and a duplexer. In addition, the handset may also communicate wirelessly with other devices in the network via the RF circuitry 31. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), LTE, email, and Short Messaging Service (SMS), among others.
The power supply 32 may be used to power various components of the handset, and the power supply 32 may be a battery. Optionally, the power source may be logically connected to the processor 30 through a power management system, so as to implement functions of managing charging, discharging, power consumption management, and the like through the power management system.
The memory 33 may be used to store software programs and/or modules, and the processor 30 executes various functional applications and data processing of the mobile phone by operating the software programs and/or modules stored in the memory 33. The memory 33 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, image data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 33 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 34 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 34 may include a touch screen 341 and other input devices 342. The touch screen 341, also called a touch panel, may collect touch operations of a user on or near the touch screen 341 (for example, operations of the user on or near the touch screen 341 using any suitable object or accessory such as a finger or a stylus pen), and drive the corresponding connection device according to a preset program. Alternatively, the touch screen 341 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 30, and can receive and execute commands sent by the processor 30. In addition, the touch screen 341 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. Other input devices 342 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power switch keys, etc.), a trackball, a mouse, and a joystick.
The display unit 35 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 35 may include a display panel 351. Alternatively, the display panel 351 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch screen 341 may cover the display panel 351, and when the touch screen 341 detects a touch operation on or near the touch screen, the touch screen is transmitted to the processor 30 to determine the type of the touch event, and then the processor 30 provides a corresponding visual output on the display panel 351 according to the type of the touch event. Although in fig. 3, the touch screen 341 and the display panel 351 are two separate components to implement the input and output functions of the mobile phone, in some embodiments, the touch screen 341 and the display panel 351 may be integrated to implement the input and output functions of the mobile phone.
Audio circuitry 36, a speaker 361, and a microphone 362 for providing an audio interface between a user and a cell phone. In one aspect, the audio circuit 36 may transmit the electrical signal converted from the received audio data to the speaker 361, and the audio signal is converted into a sound signal by the speaker 361 for output. On the other hand, the microphone 362 converts the collected sound signals into electrical signals, which are received by the audio circuit 36 and converted into audio data, which are then output by the processor 30 to the RF circuit 31 for transmission to, for example, another cellular phone, or output by the processor 30 to the memory 33 for further processing.
Optionally, the handset as shown in fig. 3 may also include various sensors. Such as gyroscope sensors, hygrometer sensors, infrared sensors, magnetometer sensors, etc., and will not be described in detail herein.
Optionally, the mobile phone shown in fig. 3 may further include a Wi-Fi module, a bluetooth module, and the like, which are not described herein again.
The HARQ indication method provided in the embodiment of the present invention may be used in a scenario in which, after receiving downlink data sent by a base station, a UE sends feedback information to the base station (hereinafter, referred to as scenario one), or may be used in a scenario in which, after sending uplink data to the base station, the UE receives feedback information sent by the base station (hereinafter, referred to as scenario two). The HARQ indication method provided by the embodiment of the present invention is described in detail below by taking the scenario one and the scenario two as examples.
Scene one
In scenario one, in conjunction with the wireless communication system shown in fig. 1, as shown in fig. 4, an embodiment of the present invention provides a HARQ indication method, where the method may include S101-S106:
s101, the base station generates HARQ indication information, wherein the HARQ indication information comprises the identification of at least two TBs and transmission time indication information corresponding to each TB of the at least two TBs.
The at least two TBs are TBs sent to the UE by the base station using different bandwidth parts BWP, the transmission indication information is used for indicating a time point when the UE sends first feedback information, and the first feedback information is feedback information sent to the base station after the UE receives downlink data sent by the base station.
Illustratively, taking the HARQ indication information including the identities of 5 TBs and the transmission time indication information corresponding to each of the 5 TBs as an example, table 1 below is an example of the content of the HARQ indication information.
TABLE 1
Identification of TB Transmission time indication information
TB1 TIME1
TB2 TIME2
TB3 TIME3
TB4 TIME4
TB5 TIME5
In table 1, TIME1-TMIE5 represents 5 pieces of transmission TIME indication information corresponding to TB1-TB 5.
In this embodiment of the present invention, the transmission time indication information may include a time point when the UE sends the first feedback information to the base station, or an index of the time point when the UE sends the first feedback information to the base station, or a time difference between the time point when the UE sends the first feedback information to the base station and a time point when the UE receives at least two TBs sent by the base station. If the transmission time indication information includes a time point when the UE sends the first feedback information to the base station, the base station can directly know at which time point the UE sends the first feedback information to the base station; if the transmission time indication information includes an index of a time point when the UE sends the first feedback information to the base station, the UE may know at which time point the UE sends the first feedback information to the base station according to the index (the index may indicate the time point when the UE sends the first feedback information to the base station); if the transmission time indication information includes a time difference between a time point when the UE transmits the first feedback information to the base station and a time point when the UE receives at least two TBs transmitted by the base station, for example, the time difference is 4 milliseconds (ms), after the UE receives the at least two TBs transmitted by the base station, the UE transmits the first feedback information to the base station after 4 ms.
It should be noted that, in the embodiment of the present invention, the transmission time indication information may further include any other information that can indicate the time point of the first feedback time, which may be determined according to actual usage requirements, and the embodiment of the present invention is not limited.
Optionally, in this embodiment of the present invention, the HARQ indication information generated by the base station may further include frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to send the first feedback information.
In this embodiment of the present invention, the frequency domain resource indication information may include a frequency domain resource used by the UE to send the first feedback information to the base station, or an index of the frequency domain resource used by the UE to send the first feedback information to the base station. If the frequency domain resource indication information comprises the frequency domain resource adopted by the UE for sending the first feedback information to the base station, the base station can directly acquire the frequency domain resource adopted by the UE for sending the first feedback information to the base station; if the transmission time indication information includes an index of a frequency domain resource used by the UE to send the first feedback information to the base station, the UE may know, according to the index (which may indicate the frequency domain resource used by the UE to send the first feedback information to the base station), the frequency domain resource used by the UE to send the first feedback information to the base station.
It should be noted that, in the embodiment of the present invention, the frequency domain resource indication information may further include any other frequency domain resource that can indicate the UE to send the first feedback time to the base station, which may be specifically determined according to actual usage requirements, and the embodiment of the present invention is not limited thereto.
It can be understood that, in the embodiment of the present invention, since the at least two TBs are sent to the UE by the base station using different BWPs, when the UE sends the feedback information for the at least two TBs (i.e. the first feedback information), it is necessary to send the feedback information of each of the at least two TBs at different time points, or send the feedback information of each of the at least two TBs by using different frequency domain resources, for example, the transmission time indication information includes a time point when the UE sends the first feedback information to the base station, where the time point includes a time point corresponding to the time point when the UE sends the feedback information of each of the at least two TBs, and similarly, the frequency domain resource indication information includes a frequency domain resource used by the UE to send the first feedback information to the base station, and the frequency domain resource includes a frequency domain resource corresponding to the feedback information of each of the at least two TBs sent by the UE.
S102, the base station sends HARQ indication information to the UE.
In the embodiment of the invention, the base station can send the HARQ indication information to the UE by any one of the following three methods A1-A3:
a1, the base station sends the HARQ indication information carried in the downlink scheduling information to the UE.
In the embodiment of the present invention, when the base station sends the downlink scheduling information to the UE through the DCI signaling in the downlink control channel (PDCCH), the HARQ indication information may be carried in the downlink scheduling information and sent to the UE, so that when the UE receives the downlink scheduling information, the UE may obtain the HARQ indication information.
A2, the base station carries the HARQ indication information in the high layer signaling and sends the HARQ indication information to the UE.
In the embodiment of the present invention, when the base station sends a high-level signaling (for example, a Radio Resource Control (RRC) signaling) to the UE, the base station may carry HARQ indication information in the RRC signaling and send the RRC signaling to the UE, so that when the UE receives the RRC signaling, the UE may obtain the HARQ indication information.
A3, the base station broadcasts HARQ indication information.
In the embodiment of the invention, the base station can broadcast the HARQ indication information in a broadcasting mode, and the UE can receive the broadcast information of the base station, so that the UE can acquire the HARQ indication information.
In summary, the base station may employ multiple methods to send HARQ indication information to the UE to indicate the UE to receive the first feedback information.
S103, the UE receives the HARQ indication information sent by the base station.
In the embodiment of the invention, the UE can acquire the HARQ indication information by receiving the HARQ indication information sent by the base station. Specifically, in the above S102, the base station may transmit the HARQ indication information to the UE by using any one of the three methods a1-A3, and then the UE may correspondingly receive the HARQ indication information transmitted by the base station by using any one of the following three methods B1-B3:
b1, the UE receives the downlink scheduling information carrying the HARQ indication information sent by the base station.
B2, the UE receives the high layer signaling carrying the HARQ indication information sent by the base station.
B3, the UE receives broadcast information which is broadcast by the base station and carries HARQ indication information.
In summary, in the embodiment of the present invention, the UE may obtain the HARQ indication information from the downlink scheduling information carrying the HARQ indication information, or from the higher layer signaling carrying the HARQ indication information, or from the broadcast information carrying the HARQ indication information.
For other descriptions of B1-B3, reference may be made to the above description of a1-A3 in S102, and further description is omitted here.
Optionally, in the embodiment of the present invention, the HARQ indication information obtained by the UE does not need to be configured by the base station, the HARQ indication information obtained by the UE is predefined HARQ indication information, and the predefined HARQ indication information is defined in a communication protocol between the base station and the UE, so that after the base station receives at least two TBs, the UE may send the first feedback information to the base station according to the predefined HARQ indication information.
And S104, the base station sends at least two TBs to the UE, wherein the at least two TBs are TBs transmitted on different BWPs.
In the embodiment of the present invention, when the base station sends downlink data to the UE, the base station may send at least two TBs to the UE on one HARQ process by using at least two BWPs, that is to say, the method may be understood as follows: the at least two TBs are transmitted by the base station to the UE using different BWPs.
S105, the UE receives at least two TBs sent by the base station.
S106, the UE sends the first feedback information to the base station under the indication of the HARQ indication information sent by the base station.
It should be noted that, in this embodiment of the present invention, the first feedback information is specifically feedback information corresponding to at least two TBs, and since the system bandwidth may be divided into multiple BWPs according to different numerical configurations (numerology), and subcarrier intervals, symbol lengths, and the like of different BWPs may not be the same, the base station sends the at least two TBs to the UE using different BWPs, and after the UE receives the at least two TBs, when the UE replies to the base station with the feedback information of the at least two TBs (hereinafter, referred to as first feedback information), feedback time corresponding to the feedback information of each TB may also be different.
In the embodiment of the present invention, the system bandwidth is divided into different BWPs according to different numerical configurations (numerology), so that different TBs are transmitted using different BWPs, for example, the system bandwidth is divided into 3 BWPs, and table 2 below is an example of the corresponding relationship among the numerical configurations (numerology), BWPs, and TBs.
TABLE 2
Name of numerical configuration (numerology) Name of BWP Name of TB
Numerical configuration (numerology)1 BWP1 TB1
Numerical configuration (numerology)2 BWP2 TB2
Numerical configuration (numerology)3 BWP3 TB3
Optionally, in this embodiment of the present invention, when the HARQ indication information includes transmission time indication information, the step S106 may specifically be implemented by the step S106 a:
s106, 106a, the UE sends first feedback information to the base station at the time point indicated by the transmission time indication information corresponding to the identifier of each TB according to the identifier of each TB in the at least two TBs received by the UE.
Illustratively, taking the example that the base station transmits two TBs (the identities of the two TBs are respectively denoted as TB1 and TB2, the TB1 is transmitted using BWP1, and the TB2 is transmitted using BWP 2) to the UE, the UE may transmit first feedback information to the base station at a time point indicated by the base station according to the transmission time indication information in the HARQ indication information, and specifically, assuming that time points corresponding to TB1 and TB2 in the transmission time indication information are T1 and T2, the UE may transmit feedback information for the TB1 to the base station at a time point T1 corresponding to TB1, transmit feedback information for the TB2 to the base station at a time point T2 corresponding to TB2,
similarly, in this embodiment of the present invention, when the HARQ indication information includes frequency domain resource indication information, the step S106 may specifically be implemented by the step S106 b:
s106, 106b, the UE sends the first feedback information to the base station by adopting the frequency domain resource indicated by the frequency domain resource indication information corresponding to the identifier of each TB according to the identifier of each TB in the at least two TBs received by the UE.
For example, also taking the case that the base station transmits two TBs (i.e., TB1 and TB2 described above) to the UE, the UE may also transmit the first feedback information to the base station by using the frequency domain resource indicated by the base station according to the frequency domain resource indication information in the HARQ indication information, and specifically, assuming that the frequency domain resources corresponding to TB1 and TB2 in the frequency domain resource indication information are R1 and R2, the UE may transmit the feedback information for TB1 to the base station by using R1 corresponding to TB1, and transmit the feedback information for TB2 to the base station by using R2 corresponding to TB 2.
Optionally, in this embodiment of the present invention, the first feedback information may include an identifier of a HARQ process and transmission results of at least two TBs, where the transmission results of the at least two TBs include a success or a failure of transmission of each of the at least two TBs.
Generally, a base station and a UE may transmit data on multiple HARQ processes, where first feedback information sent by the UE to the base station includes an identifier of the HARQ process, and thus after receiving the first feedback information, the base station may learn, according to the identifier of the HARQ process, a situation that the data is transmitted on the HARQ process indicated by the identifier of the HARQ process among the multiple HARQ processes between the base station and the UE.
Taking an example of transmitting two TBs (e.g., TB1 and TB2) on one harq process, after receiving the first feedback information, the base station may learn whether the UE successfully receives the TB1 according to a transmission result of TB1 in the transmission result, if the base station determines that the UE successfully receives the TB1 according to the transmission result of TB1, the base station may send a new TB to the UE, if the base station determines that the UE fails to receive the TB1 according to the transmission result of TB1, the base station resends the TB1 to the UE, and if the UE successfully receives and decodes the TB1 according to a transmission result of TB1 in the transmission result. Likewise, the base station may determine whether to transmit a new TB to the UE or retransmit TB2 to the UE according to the transmission result of TB 2.
Optionally, in this embodiment of the present invention, data may be transmitted between the base station and the UE in multiple HARQ processes, where the number of HARQ processes may be specified by a protocol, may also be configured for the UE through a high-level signaling by the base station, may also be configured for the UE through system broadcast, and specifically, a method for determining the number of HARQ processes may be selected according to an actual situation, which is not limited in this embodiment of the present invention.
Optionally, with reference to fig. 4, as shown in fig. 5, in the embodiment of the present invention, before the step S101, the HARQ indicating method provided in the embodiment of the present invention may further include steps S107 to S108:
s107, the UE sends the capability indication information of the UE to the base station, and the capability indication information of the UE is used for indicating that the UE supports the transmission of TB on at least two BWPs.
S108, the base station receives the UE capability indication information sent by the UE.
In this embodiment of the present invention, the capability of the UE may support the UE to transmit data (transmit data or receive data) using multiple BWPs, the UE may send capability indication information of the UE to the base station to indicate that the UE may transmit data using multiple BWPs, that is, to indicate that the UE may receive different TBs sent by the base station using different BWPs, or the UE may send different TBs using different BWPs, such that the base station receives the capability indication information of the UE sent by the UE, the base station sends the HARQ indication information to the UE, and then sends different TBs to the UE using different BWPs (that is, the base station may send at least two TBs to the UE using at least two BWPs), after receiving the at least two TBs, the UE may send first feedback information to the base station according to the HARQ indication information, that is, the base station and the UE may send the S101 to S106 in.
Optionally, in this embodiment of the present invention, before the step S101, the base station may further generate HARQ configuration information, and send the HARQ configuration information to the UE, where the HARQ configuration information includes an identifier of at least one BWP and an identifier of a HARQ entity, and the HARQ configuration information is used to indicate that the HARQ entity controls and manages the at least one BWP.
In this embodiment of the present invention, the base station may configure one HARQ entity for the BWPs managed by the base station, and the base station may also configure one HARQ entity for each BWP managed by the base station, and send HARQ configuration information including an identifier of at least one BWP and an identifier of the HARQ entity to the UE, so that the base station and the UE may transmit data using at least one BWP on one HARQ process of one HARQ entity.
It should be noted that, in the embodiment of the present invention, if the HARQ configuration information includes at least two BWP identities and an HARQ entity identity, that is, the base station and the UE transmit data using multiple BWPs, the base station may send HARQ indication information to the UE by using the methods in S101 to S106 and S107 to S108, and the UE may send first feedback information to the base station according to the HARQ indication information.
In the HARQ indication method provided by the embodiment of the present invention, the base station may generate HARQ indication information, and the base station may transmit the HARQ indication information to the UE, and after the UE receives the HARQ indication information, the UE may transmit first feedback information for at least two TBs (at least two TBs that the base station transmits to the UE) to the base station according to the HARQ indication information, where the at least two TBs are TBs transmitted using different BWPs, and the transmission time indication information is used for indicating a time point when the UE transmits the first feedback information. Compared with the prior art, in the embodiment of the present invention, since the base station may generate the HARQ indication information, and the HARQ indication information is configured to the UE, when the UE receives at least two TBs, and the at least two TBs are TBs transmitted using different BWPs, the UE may smoothly transmit the first feedback information to the base station according to the HARQ indication information.
In the embodiment of the present invention, referring to table 2, since at least two TBs are TBs transmitted using different BWPs, it may be considered that there is a corresponding relationship between the TB and the BWP, that is, different TBs correspond to different BWPs, and since BWPs are divided according to different numerical configurations (numerology), it may be considered that there is a corresponding relationship between BWPs and numerical configurations (numerology), that is, different BWPs correspond to different numerical configurations (numerology), and thus, it may be considered that there is a corresponding relationship between the TB and the numerical configurations (numerology), that is, different TBs correspond to different numerical configurations (numerology).
Optionally, in this embodiment of the present invention, since different TBs correspond to different BWPs, that is, the identifier of the BWP may indicate the identifier of the TB, the HARQ indication information may include identifiers of at least two BWPs, and transmission time indication information corresponding to each of the at least two BWPs, and may further include frequency domain resource indication information corresponding to the at least two BWPs.
In this embodiment of the present invention, if the HARQ indication information includes the identities of the at least two BWPs and the transmission time indication information corresponding to each BWP of the at least two BWPs, after the UE receives the at least two TBs transmitted by the base station, the UE may determine which two BWPs the at least two TBs are transmitted using, and then transmit the first feedback information to the base station according to the HARQ indication information, for example, as shown in table 2, the UE receives TB1 and TB2, the UE may determine that TB1 is transmitted using BWP1, i.e., may determine a time point for transmitting feedback information of TB1 according to the HARQ indication information, and the UE may know that TB2 is transmitted using BWP2, i.e., may determine a time point for transmitting feedback information of TB2 according to the HARQ indication information.
Optionally, in this embodiment of the present invention, since different TBs may correspond to different numerical configurations (numerology), that is, the identifier of a numerical configuration (numerology) may indicate the identifier of the TB, the HARQ indication information may include identifiers of at least two numerical configurations (numerology), and transmission time indication information corresponding to each numerical configuration (numerology) in the at least two numerical configurations (numerology), and may further include frequency domain resource indication information corresponding to the at least two numerical configurations (numerology).
In this embodiment, if the HARQ indication information includes an identifier of at least two numerical configurations (numerology) and transmission time indication information corresponding to each of the at least two numerical configurations (numerology), after the UE receives at least two TBs transmitted by the base station, the UE may determine which two BWPs corresponding to which two numerical configurations (numerology) the at least two TBs are used for transmitting by the UE, and transmit the first indication information to the base station according to the HARQ indication information. For example, as shown in table 2, when the UE receives TB1 and TB2, the UE may determine that TB1 is transmitted using BWP1 corresponding to numerical configuration (numerology)1, that is, a time point for transmitting feedback information of TB1 may be determined according to HARQ indication information, and the UE may know that TB2 is transmitted using BWP2 corresponding to numerical configuration (numerology)2, that is, a time point for transmitting feedback information of TB2 may be determined according to HARQ indication information.
Scene two
In scenario two, with reference to fig. 1, as shown in fig. 6, an embodiment of the present invention provides a HARQ indication method, where the method may include S201 to S207:
s201, the base station generates HARQ indication information, wherein the HARQ indication information comprises the identification of at least two TBs and transmission time indication information corresponding to each TB of the at least two TBs.
The at least two TBs are TBs sent by the UE to the base station using different bandwidth portions BWP, and the transmission indication information is used to indicate a time point when the UE receives second feedback information, where the second feedback information is feedback information sent by the base station to the UE after receiving the at least two TBs sent by the UE.
In this embodiment of the present invention, the transmission time indication information may include a time point when the UE receives the second feedback information sent by the base station, or an index of the time point when the UE receives the second feedback information sent by the base station, or a time difference between the time point when the UE receives the second feedback information sent by the base station and the time point when the UE sends at least two TBs to the base station.
Optionally, the HARQ indication information generated by the base station may further include frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to receive the second feedback information sent by the base station.
For other descriptions of HARQ indication information (transmission time indication information and frequency domain resource indication information), similar to the HARQ indication information in S101 in the foregoing embodiment, specifically refer to S101, which is not described herein again.
It can be understood that, in the embodiment of the present invention, the time point when the UE receives the second feedback information sent by the base station includes a time point when the UE receives the feedback information sent by the base station for each of the at least two TBs, and taking two TBs as an example (denoted as TB1 and TB2), the time point includes a time point 1 when the UE receives the feedback information sent by the base station for TB1, and a time point 2 when the UE receives the feedback information sent by the base station for TB2, and similarly, the frequency domain resource when the UE receives the second feedback information sent by the base station includes frequency domain resources corresponding to each of the at least two TBs.
S202, the base station sends HARQ indication information to the UE.
S203, the UE receives the HARQ indication information sent by the base station.
For the relevant description of S202 to S203, refer to the description of S102 to S103 in the above embodiments, which is not described herein again.
S204, the UE sends at least two TBs to the base station, wherein the at least two TBs are the TBs sent by using different BWPs.
In the embodiment of the present invention, when the UE sends uplink data to the base station, the UE may send at least two TBs to the base station on one HARQ process by using at least two BWPs, that is to say, the UE may be understood as: the at least two TBs are TBs that the UE transmits to the base station using different BWPs.
S205, the base station receives at least two TBs sent by the UE.
S206, the base station sends second feedback information to the UE.
In this embodiment of the present invention, the second feedback information is feedback information for at least two TBs received by the base station and sent to the UE by the base station, where the second feedback information may include an identifier of a HARQ process and transmission results of the at least two TBs, and the transmission results of the at least two TBs include transmission success or failure of each of the at least two TBs.
Exemplarily, taking the UE sending two TBs (denoted as TB1 and TB2) to the base station on one HARQ process, the base station receiving the two TBs, if the base station receiving TB1 succeeds, the base station sending feedback information indicating that the base station receiving TB1 succeeds to the UE for notifying the UE sending a new TB to the base station, if the base station receiving TB1 fails, the base station sending feedback information indicating that the base station receiving TB1 fails to the UE for notifying the UE sending TB1 to the base station, and similarly, for TB2, if the base station receiving TB2 succeeds, the base station sending feedback information indicating that the base station receiving TB2 succeeds to the UE for notifying the UE sending a new TB to the base station, and if the base station receiving TB2 fails, the base station sending feedback information indicating that the base station receiving TB2 fails to the UE sending TB2 to the base station again.
S207, the UE receives second feedback information sent by the base station under the indication of the HARQ indication information.
Optionally, when the HARQ indication information includes the transmission time indication information, the S207 may specifically be implemented by the S207 a:
s207a, the UE receives, according to the identifier of each TB of the at least two TBs sent by the UE, the second feedback information sent by the base station at the time point indicated by the transmission time indication information corresponding to the identifier of each TB.
In the embodiment of the present invention, since the implementation manner of S107a is similar to that of S106a, for the related description of S107a, reference may be made to the related description of S106a in the above embodiment, and details are not repeated here.
Optionally, in this embodiment of the present invention, when the HARQ indication information includes frequency domain resource indication information, the step S207 may specifically be implemented by the step S207 b:
s207b, the UE receives the second feedback information sent by the base station by using the frequency domain resource indicated by the frequency domain resource indication information corresponding to the identifier of each TB according to the identifier of each TB of the at least two TBs sent by the UE.
In the embodiment of the present invention, since the implementation manner of S107b is similar to that of S106b, for the related description of S107b, reference may be made to the related description of S106b in the above embodiment, and details are not repeated here.
In the embodiment of the present invention, after receiving the second feedback information, the UE may send a new TB to the base station or retransmit a TB with transmission failure in the at least two TBs to the base station according to the identifier of the HARQ process in the feedback information and the transmission result of the at least two TBs.
Optionally, with reference to fig. 6, as shown in fig. 7, in the embodiment of the present invention, before the step S201, the HARQ indicating method provided in the embodiment of the present invention may further include steps S208 to S209:
s208, the UE sends the capability indication information of the UE to the base station, wherein the capability indication information of the UE is used for indicating that the UE supports the transmission of the TB on at least two BWPs.
S209, the base station receives the UE capability indication information sent by the UE.
For specific descriptions of S208-S209, reference may be made to the description of S107-S108 in the above embodiments, and details are not repeated here.
Optionally, before the step S201, the base station may further generate HARQ configuration information and send the HARQ configuration information to the UE.
It should be noted that, in the embodiment of the present invention, if the HARQ configuration information includes at least two BWP identities and an HARQ entity identity, that is, the base station and the UE transmit data using multiple BWPs, the base station may send HARQ indication information to the UE by the method in S201-S207 and S208-S209, and the UE may receive second feedback information sent by the base station according to the HARQ indication information.
For other specific descriptions of the HARQ configuration information, refer to the embodiment of scenario one above, and the description of the HARQ configuration information is not repeated here.
Optionally, the HARQ configuration information may also be predefined by the base station and the UE, and in this case, the base station does not need to send the HARQ configuration information to the UE, and the UE may perform data transmission with the base station by using the predefined HARQ configuration information.
In the HARQ indication method provided by the embodiment of the present invention, the base station may generate HARQ indication information, and the base station may send the HARQ indication information to the UE, and after the UE receives the HARQ indication information, the UE may receive second feedback information for at least two TBs (at least two TBs sent by the UE to the base station) sent by the base station according to the HARQ indication information, where the at least two TBs use TBs sent by different BWPs, and the transmission time indication information is used for indicating a time point when the UE receives the second feedback information. Compared with the prior art, in the embodiment of the present invention, the base station may generate the HARQ indication information, and the HARQ indication information is configured to the UE, so that after the UE sends at least two TBs to the base station, if the at least two TBs are sent by the UE using different BWPs, the UE may smoothly receive the second feedback information sent by the base station according to the HARQ indication information.
Optionally, the HARQ indication information may include an identifier of at least two BWPs and transmission time indication information corresponding to each BWP of the at least two BWPs, and may further include frequency resource indication information corresponding to the at least two BWPs.
Optionally, the HARQ indication information may include an identifier of at least two numerical configurations (numerology), and transmission time indication information corresponding to each of the at least two numerical configurations (numerology), and may further include frequency domain resource indication information corresponding to the at least two numerical configurations (numerology).
For other relevant descriptions of the HARQ indication information, refer to a scenario of relevant description of HARQ indication information in the foregoing embodiment, which is not described herein again.
The above-mentioned scheme provided by the embodiment of the present invention is introduced mainly from the perspective of interaction between network elements. It is to be understood that each network element, for example, a base station, a UE, etc., contains corresponding hardware structures and/or software modules for performing each function in order to realize the functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present invention, the base station, the UE, and the like may be divided into functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of dividing each functional module according to each function, fig. 8 shows a schematic structural diagram of the base station related in the foregoing embodiment, and as shown in fig. 8, the base station may include: a generating module 40 and a transmitting module 41. The generating module 40 may be configured to support the base station to perform S101 and S201 in the foregoing method embodiment; the sending module 14 may be configured to support the base station to perform S102, S104, S202, and S206 in the above method embodiment. Optionally, as shown in fig. 8, the base station may further include a receiving module 42. The receiving module 42 may be configured to support the base station to perform S108, S205, and S209 in the above method embodiment. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
In the case of using an integrated unit, the base station provided in the embodiment of the present invention may be the base station shown in fig. 2 in the above embodiment. In particular, the processing unit may be configured to control and manage the actions of the base station, for example, the processing unit may be configured to support the base station to perform S101 and S201 in the above-described method embodiments, and/or other processes for the techniques described herein. The transceiver unit may be configured to support the base station to communicate with other network entities, for example, the transceiver unit may be configured to support the base station to perform S102, S104, S108, S202, S205, S206 and S209 in the above method embodiments.
In the case of adopting the functional modules divided for the respective functions, fig. 9 shows a possible structural diagram of the UE involved in the foregoing embodiment, as shown in fig. 9, the UE may include: an acquisition module 60 and a communication module 61. The obtaining module 60 may be configured to support the UE to perform S103 and S203 in the foregoing method embodiment; the communication module may include a sending module 611 and a receiving module 612, and the sending module 611 may be configured to support the UE to perform S106, S107, S204, and S208 in the above method embodiments; the receiving module 612 may be configured to support the UE to perform S105 and S207 in the above method embodiments. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
In the case of using an integrated unit, the UE provided in the embodiment of the present invention may be a mobile phone as shown in fig. 2 in the above embodiment. In particular, the processor 30 may be configured to control and manage the actions of the UE, for example, the processor 30 may be configured to support the UE to perform S103 and S203 in the above-described method embodiments, and/or other processes for the techniques described herein. The RF circuitry 31 may be used to support the UE in communication with other network entities, for example, the RF circuitry 31 may be used to support the UE to perform S105, S106, S107, S204, S207 and S208 in the above-described method embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the flow or functions according to embodiments of the invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Drive (SSD)), among others.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (43)

1. A HARQ indication method is characterized in that,
a base station generates hybrid automatic repeat request (HARQ) indication information, wherein the HARQ indication information comprises identification of at least two Transport Blocks (TBs) and transmission time indication information corresponding to each of the at least two TBs, and the at least two TBs are TBs sent by using different bandwidth parts (BWPs); the transmission time indication information is used for indicating a time point of sending first feedback information by User Equipment (UE), and the first feedback information is feedback information sent to the base station after the UE receives at least two TBs sent by the base station; or the transmission time indication information is used for indicating a time point when the UE receives second feedback information, where the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE; or the transmission time indication information is used for indicating a time point when the UE sends first feedback information and a time point when the UE receives second feedback information, where the first feedback information is feedback information sent to the base station after the UE receives at least two TBs sent by the base station, and the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE;
and the base station sends the HARQ indication information to the UE.
2. The method of claim 1, wherein the transmission time indication information indicates a time point when the UE transmits the first feedback information;
after the base station sends the HARQ indication information to the UE, the method further includes:
the base station sends at least two TBs to the UE;
and the base station receives the first feedback information sent by the UE according to the transmission time indication information.
3. The method of claim 1, wherein the transmission time indication information indicates a time point when the UE receives the second feedback information;
after the base station sends the HARQ indication information to the UE, the method further includes:
the base station receives at least two TBs sent by the UE;
and the base station sends the second feedback information to the UE according to the transmission time indication information.
4. The method according to any one of claims 1 to 3, wherein when the transmission time indication information is used for indicating a time point when the UE transmits the first feedback information, the transmission time indication information comprises:
a time point at which the UE transmits the first feedback information to the base station;
or, the UE sends an index of a time point of the first feedback information to the base station;
or, a time difference between a time point when the UE transmits the first feedback information to the base station and a time point when the UE receives at least two TBs transmitted by the base station;
when the transmission time indication information is used to indicate a time point at which the UE receives the second feedback information, the transmission time indication information includes:
the UE receives the time point of the second feedback information sent by the base station;
or, the UE receives an index of a time point of the second feedback information sent by the base station;
or, a time difference between a time point when the UE receives the second feedback information sent by the base station and a time point when the UE sends the at least two TBs to the base station.
5. The method according to any one of claims 1 to 3,
the HARQ indication information further includes frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to send the first feedback information and/or a frequency domain resource used to receive the second feedback information.
6. The method of claim 5, wherein when the frequency domain resource indication information indicates the frequency domain resources used by the UE for transmitting the first feedback information, the frequency domain resource indication information comprises:
the UE sends the frequency domain resource adopted by the first feedback information to the base station;
or, the UE sends the index of the frequency domain resource used by the first feedback information to the base station;
when the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to receive the second feedback information, the frequency domain resource indication information includes:
the UE receives frequency domain resources adopted by the second feedback information sent by the base station;
or, the UE receives an index of a frequency domain resource used by the second feedback information sent by the base station.
7. The method according to any of claims 1 to 3, wherein the base station transmits the HARQ indication information to the UE, and comprises:
the base station carries the HARQ indication information in downlink scheduling information and sends the downlink scheduling information to the UE; or
The base station carries the HARQ indication information in a high-level signaling and sends the HARQ indication information to the UE; or
And the base station broadcasts the HARQ indication information.
8. The method according to any of claims 1 to 3, wherein before the base station generates HARQ indication information, the method further comprises:
and the base station receives capability indication information of the UE sent by the UE, wherein the capability indication information of the UE is used for indicating that the UE supports the transmission of the TB on the at least two BWPs.
9. The method according to any of claims 1 to 3, wherein before the base station generates HARQ indication information, the method further comprises:
the base station generates HARQ configuration information, wherein the HARQ configuration information comprises an identification of at least one BWP and an identification of a HARQ entity, and the HARQ configuration information is used for indicating the HARQ entity to control and manage the at least one BWP;
and the base station sends the HARQ configuration information to the UE.
10. A HARQ indication method is characterized by comprising the following steps:
user Equipment (UE) acquires hybrid automatic repeat request (HARQ) indication information, wherein the HARQ indication information comprises identifications of at least two transport blocks and transmission time indication information corresponding to each TB of at least two TBs, and the at least two TBs are TBs sent by using different bandwidth parts (BWPs); the transmission time indication information is used for indicating a time point when the UE sends first feedback information, and the first feedback information is feedback information sent to a base station after the UE receives at least two TBs sent by the base station; or the transmission time indication information is used for indicating a time point when the UE receives second feedback information, where the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE; or the transmission time indication information is used to indicate a time point when the UE sends first feedback information and a time point when the UE receives second feedback information, where the first feedback information is feedback information sent to the UE after the UE receives at least two TBs sent by a base station, and the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE;
the UE sends the first feedback information to the base station under the indication of the HARQ indication information;
or, the UE receives the second feedback information sent by the base station under the indication of the HARQ indication information.
11. The method of claim 10, wherein the transmission time indication information indicates a time point when the UE transmits the first feedback information;
after the UE acquires the HARQ indication information, the method further includes:
and the UE receives at least two TBs sent by the base station.
12. The method of claim 10, wherein the transmission time indication information indicates a time point when the UE receives the second feedback information;
after the UE acquires the HARQ indication information, the method further includes:
the UE transmits at least two TBs to the base station.
13. The method according to any one of claims 10 to 12,
the UE sends the first feedback information to the base station under the indication of the HARQ indication information, including:
the UE sends first feedback information to the base station at a time point indicated by transmission time indication information corresponding to the identifier of each TB according to the identifier of each TB in the at least two TBs received by the UE; alternatively, the first and second electrodes may be,
the UE receives the second feedback information sent by the base station under the indication of the HARQ indication information, including:
and the UE receives second feedback information sent by the base station at a time point indicated by the transmission time indication information corresponding to the identifier of each TB according to the identifier of each TB in the at least two TBs sent by the UE.
14. The method according to any one of claims 10 to 12, wherein when the transmission time indication information is used for indicating a time point when the UE transmits the first feedback information, the transmission time indication information comprises:
a time point at which the UE transmits the first feedback information to the base station;
or, the UE sends an index of a time point of the first feedback information to the base station;
or, a time difference between a time point when the UE transmits the first feedback information to the base station and a time point when the UE receives at least two TBs transmitted by the base station;
when the transmission time indication information is used to indicate a time point at which the UE receives the second feedback information, the transmission time indication information includes:
the transmission time indication information comprises a time point when the UE receives the second feedback information sent by the base station;
or, the UE receives an index of a time point of the second feedback information sent by the base station;
or, a time difference between a time point when the UE receives the second feedback information sent by the base station and a time point when the UE sends the at least two TBs to the base station.
15. The method according to any one of claims 10 to 12,
the HARQ indication information further includes frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to send the first feedback information or a frequency domain resource used to receive the second feedback information.
16. The method of claim 15, wherein when the frequency-domain resource indication information indicates the frequency-domain resources used by the UE to send the first feedback information, the frequency-domain resource indication information includes:
the UE sends the frequency domain resource adopted by the first feedback information to the base station;
or, the UE sends an index of a frequency domain resource used by the first feedback information to the base station;
when the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to receive the second feedback information, the frequency domain resource indication information includes:
the UE receives frequency domain resources adopted by the second feedback information sent by the base station;
or, the UE receives an index of a frequency domain resource used by the second feedback information sent by the base station.
17. The method according to any of claims 10 to 12, wherein the UE acquires HARQ indication information, comprising:
the UE receives downlink scheduling information which is sent by the base station and carries the HARQ indication information; or
The UE receives a high-level signaling which is sent by the base station and carries the HARQ indication information; or
The UE receives broadcast information which is broadcasted by the base station and carries the HARQ indication information; or
And the UE acquires the predefined HARQ indication information.
18. The method according to any of claims 10 to 12, wherein before the UE acquires HARQ indication information, the method further comprises:
and the UE sends capability indication information of the UE to the base station, wherein the capability indication information of the UE is used for indicating that the UE supports the transmission of the TB on the at least two BWPs.
19. The method according to any of claims 10 to 12, wherein before the UE acquires HARQ indication information, the method further comprises:
the UE acquires HARQ configuration information, wherein the HARQ configuration information comprises an identifier of at least one BWP and an identifier of a HARQ entity, and the HARQ configuration information is used for indicating the HARQ entity to control and manage the at least one BWP.
20. A base station is characterized by comprising a generating module and a sending module;
the generation module is configured to generate HARQ indication information, where the HARQ indication information includes an identifier of at least two transport blocks, TBs, and transmission time indication information corresponding to each of the at least two TBs, and the at least two TBs are TBs that are sent using different bandwidth portions BWP; the transmission time indication information is used for indicating a time point of sending first feedback information by User Equipment (UE), and the first feedback information is feedback information sent to the base station after the UE receives at least two TBs sent by the base station; or the transmission time indication information is used for indicating a time point when the UE receives second feedback information, where the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE; or the transmission time indication information is used for indicating a time point when the UE sends first feedback information and a time point when the UE receives second feedback information, where the first feedback information is feedback information sent to the base station after the UE receives at least two TBs sent by the base station, and the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE;
the sending module is configured to send the HARQ indication information generated by the generating module to the UE.
21. The base station of claim 20, wherein the base station further comprises a receiving module, and the transmission time indication information is used for indicating a time point when the UE transmits the first feedback information;
the sending module is further configured to send at least two TBs to the UE after sending the HARQ indication information to the UE;
the receiving module is configured to receive the first feedback information sent by the UE according to the transmission time indication information.
22. The base station of claim 20, wherein the base station further comprises a receiving module, and the transmission time indication information is used for indicating a time point when the UE receives the second feedback information;
the receiving module is configured to receive at least two TBs sent by the UE after the HARQ indication information is sent to the UE;
the sending module is further configured to send the second feedback information to the UE according to the transmission time indication information.
23. The base station according to any of claims 20 to 22, wherein when the transmission time indication information is used to indicate a time point when the UE transmits the first feedback information, the transmission time indication information comprises:
a time point at which the UE transmits the first feedback information to the base station;
or, the UE sends an index of a time point of the first feedback information to the base station;
or, a time difference between a time point when the UE transmits the first feedback information to the base station and a time point when the UE receives at least two TBs transmitted by the base station;
when the transmission time indication information is used to indicate a time point at which the UE receives the second feedback information, the transmission time indication information includes:
the UE receives the time point of the second feedback information sent by the base station;
or, the UE receives an index of a time point of the second feedback information sent by the base station;
or, a time difference between a time point when the UE receives the second feedback information sent by the base station and a time point when the UE sends the at least two TBs to the base station.
24. The base station according to any of claims 20 to 22,
the HARQ indication information further includes frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to send the first feedback information or a frequency domain resource used to receive the second feedback information.
25. The base station according to claim 24, wherein when the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to transmit the first feedback information, the frequency domain resource indication information includes:
the UE sends the frequency domain resource adopted by the first feedback information to the base station;
or, the UE sends the index of the frequency domain resource used by the first feedback information to the base station;
when the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to receive the second feedback information, the frequency domain resource indication information includes:
the UE receives frequency domain resources adopted by the second feedback information sent by the base station;
or, the UE receives an index of a frequency domain resource used by the second feedback information sent by the base station.
26. The base station according to any of the claims 20 to 22,
the sending module is specifically configured to send, to the mobile terminal,
carrying the HARQ indication information in downlink scheduling information and sending the downlink scheduling information to the UE;
or, the HARQ indication information is carried in a high-level signaling and sent to the UE;
or broadcasting the HARQ indication information.
27. The base station according to any of claims 20 to 22,
the receiving module is further configured to receive capability indication information of the UE sent by the UE before the generating module generates the HARQ indication information, where the capability indication information of the UE is used to indicate that the UE supports TB transmission on the at least two BWPs.
28. The base station according to any of claims 20 to 22,
the generating module is further configured to generate HARQ configuration information, where the HARQ configuration information includes an identifier of at least one BWP and an identifier of a HARQ entity, and the HARQ configuration information is used to indicate that the HARQ entity controls management of the at least one BWP;
the sending module is further configured to send the HARQ configuration information to the UE.
29. The UE is characterized by comprising an acquisition module and a communication module;
the obtaining module is configured to obtain HARQ indication information, where the HARQ indication information includes identifiers of at least two transport blocks and transmission time indication information corresponding to each of at least two TBs, and the at least two TBs are TBs that are sent using different bandwidth portions BWP; the transmission time indication information is used for indicating a time point when the UE sends first feedback information, and the first feedback information is feedback information sent to a base station after the UE receives at least two TBs sent by the base station; or the transmission time indication information is used for indicating a time point when the UE receives second feedback information, where the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE; or the transmission time indication information is used to indicate a time point when the UE sends first feedback information and a time point when the UE receives second feedback information, where the first feedback information is feedback information sent to the UE after the UE receives at least two TBs sent by a base station, and the second feedback information is feedback information sent to the UE after the base station receives at least two TBs sent by the UE;
the communication module is configured to send the first feedback information to the base station under the indication of the HARQ indication information obtained by the obtaining module;
or, receiving the second feedback information sent by the base station under the indication of the HARQ indication information obtained by the obtaining module.
30. The UE of claim 29, wherein the transmission time indication information indicates a time point when the UE transmits the first feedback information;
the communication module is further configured to receive at least two TBs sent by the base station after the obtaining module obtains the HARQ indication information.
31. The UE of claim 30, wherein the transmission time indication information indicates a time point when the UE receives the second feedback information;
the communication module is further configured to send at least two TBs to the base station after the obtaining module obtains the HARQ indication information.
32. The UE of any of claims 29 to 31,
the communication module is specifically configured to send, according to the received identifier of each TB of the at least two TBs, first feedback information to the base station at a time point indicated by the transmission time indication information corresponding to the identifier of each TB;
or, the communication module is specifically configured to receive, according to the identifier of each TB of the at least two TBs, second feedback information sent by the base station at a time point indicated by the transmission time indication information corresponding to the identifier of each TB.
33. The UE of any one of claims 29 to 31, wherein when the transmission time indication information indicates a time point when the UE transmits the first feedback information, the transmission time indication information comprises:
a time point at which the UE transmits the first feedback information to the base station;
or, the UE sends an index of a time point of the first feedback information to the base station;
or, a time difference between a time point when the UE transmits the first feedback information to the base station and a time point when the UE receives at least two TBs transmitted by the base station;
when the transmission time indication information is used to indicate a time point at which the UE receives the second feedback information, the transmission time indication information includes:
the UE receives the time point of the second feedback information sent by the base station;
or, the UE receives an index of a time point of the second feedback information sent by the base station;
or, a time difference between a time point when the UE receives the second feedback information sent by the base station and a time point when the UE sends the at least two TBs to the base station.
34. The UE of any of claims 29 to 31,
the HARQ indication information further includes frequency domain resource indication information corresponding to each of the at least two TBs, where the frequency domain resource indication information is used to indicate a frequency domain resource used by the UE to send the first feedback information or a frequency domain resource used to receive the second feedback information.
35. The UE of claim 34, wherein when the frequency-domain resource indication information indicates the frequency-domain resources used by the UE to send the first feedback information, the frequency-domain resource indication information includes:
the UE sends the frequency domain resource adopted by the first feedback information to the base station;
or, the UE sends an index of a frequency domain resource used by the first feedback information to the base station;
when the frequency domain resource indication information is used to indicate the frequency domain resource used by the UE to receive the second feedback information, the frequency domain resource indication information includes:
the UE receives frequency domain resources adopted by the second feedback information sent by the base station;
or, the UE receives an index of a frequency domain resource used by the second feedback information sent by the base station.
36. The UE of any of claims 29 to 31,
the obtaining module is specifically configured to obtain, from the database,
receiving downlink scheduling information which is sent by the base station and carries the HARQ indication information;
or receiving a high-level signaling which is sent by the base station and carries the HARQ indication information;
or receiving broadcast information which is broadcasted by the base station and carries the HARQ indication information;
or, acquiring the predefined HARQ indication information.
37. The UE of any of claims 29 to 31,
the communication module is further configured to send capability indication information of the UE to the base station before the obtaining module obtains HARQ indication information, where the capability indication information of the UE is used to indicate that the UE supports TB transmission on the at least two BWPs.
38. The UE of any of claims 29 to 31,
the obtaining module is further configured to obtain HARQ configuration information before obtaining HARQ indication information, where the HARQ configuration information includes an identifier of at least one BWP and an identifier of a HARQ entity, and the HARQ configuration information is used to indicate the HARQ entity to control and manage the at least one BWP.
39. A base station comprising a processor and a memory coupled to the processor;
the memory is configured to store computer instructions that, when executed by the processor, cause the base station to perform the HARQ indication method of any of claims 1 to 9.
40. A user equipment, UE, comprising a processor and a memory coupled to the processor;
the memory for storing computer instructions which, when executed by the UE, cause the UE to perform the HARQ indication method of any of claims 10 to 19.
41. A computer readable storage medium comprising computer instructions which, when run on a base station, cause the base station to perform the HARQ indication method of any of claims 1 to 9.
42. A computer readable storage medium comprising computer instructions which, when run on a user equipment, UE, cause the UE to perform the HARQ indication method of any of claims 10 to 19.
43. A wireless communication system, comprising a base station according to any of claims 20 to 28 or 39 and a user equipment, UE, according to any of claims 29 to 38 or 40.
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